diff --git a/apps/desktop/layer/renderer/src/modules/app-layout/ai-enhanced-timeline/AIEnhancedTimelineLayout.tsx b/apps/desktop/layer/renderer/src/modules/app-layout/ai-enhanced-timeline/AIEnhancedTimelineLayout.tsx
index d0d82d92b..80435eb3c 100644
--- a/apps/desktop/layer/renderer/src/modules/app-layout/ai-enhanced-timeline/AIEnhancedTimelineLayout.tsx
+++ b/apps/desktop/layer/renderer/src/modules/app-layout/ai-enhanced-timeline/AIEnhancedTimelineLayout.tsx
@@ -76,7 +76,7 @@ const AIEnhancedTimelineLayoutImpl = () => {
   )
 
   const getHalfScreenWidth = useCallback(
-    () => clampWidth(typeof window !== "undefined" ? window.innerWidth / 2 : 800),
+    () => clampWidth(typeof window !== "undefined" ? window.innerWidth * 0.4 : 800),
     [clampWidth],
   )